Crepe-steaming rack



April? i, 193%. 1.. T. CARPENTER CREPE STEAMING BACK 4 Sheets-$heet Filed NOV. 3, 1928 2'. Carpenier Lanfii April 1930. L. T. CARPENTER 1,752,884

CREPE STEAMING RACK Filed Nov. 3, 1928 4 Shgetsfiheet 2 5513 1212115113? 1' flarpeniei amen/W114 L. T CARPENTER CREPE STEAMING RACK Apfi! 1'1, 1930.

Filed Nov. 3, 1928 4 Sheets-$heet Unveil/04,

Lanfiizg 1'. 551722111112" April 1, 1930. T. CARPENTER 19 2 CREPE STEAMING RACK 4 Sheets-Sheet 4 Filed Nov. 3, 1928 Patented Apr. 1, 1930 UNITED. STATES.

PATENT OFFICE LANSING T.ICARPENTER,' OF WILKES-BARRE, PENNSYLVANIA, ASSIGNOR'TO B. .G. CARPENTER 8: CO. INC., OF-WILKES-BARRE, PENNSYLVANIA .cnnrn-srnamnve RACK Application filed November 3, 1928. Serial No. 316,981.

This invention relates to crepe steaming racks designed for use in the silk industries for transporting crepe bobbins or sheeves between the various machines and the steaming chamber.

Heretofore crepe steaming racks have been made of wood in various sizes; and these wooden racks unless greatly strengthened by brass stays, corner brackets, screws, etc.

were of very short life, seldom. lasting through more'than a year-of continuous use. In this art the crepe is spun on the bobbin and the bobbins are then placed in these steaming racks which arebuilt up one on top of another on low plant trunksv which are wheeled to the crepe'steaming chamber and there steamed for from fifteen to forty minutes under temperaturesranging "from 180 to 225. At the end of the steaming period the trucks are withdrawn from the steaming chamber and the racks are removed and again distributed to other machines.

Obviously, these wooden racks twist and warp under the extreme temperature and moisture conditions involved in their use; and, when'sufliciently strong to-stand up for anyreasonable period of time under such use, must, of necessity, be made rather large and hardto handle.

The object of theinvention is, therefore, to provide a crepe steaming rack which is very light and strong, and of material which will not corrode under the influence of steam at temperatures around 225? since such. corrosion causes discoloration of the silk.

A further object of the invention is to provide sheet metal crepe steaming racks which willoutlast several of the best wooden racks under the .same conditions of use.

Another object of the invention is to provide a creperack which is comparativelyeasy to manufacture in quantities and which can be manufactured at a cost very little greater than that of the manufacture of the wooden racks now in common use.

Still another object of the invention resides in forming it of materials ,so relatively arranged that the hot racks may be handled immediately upon their'removalfrom.thesteamsf; ing chamber. i

In a modified form of this invention, I have designed it so that the several parts thereof may be readily stamped out of sheet metal and formed to facilitate .assembly of such parts into completed racks- The main object of the modified form is to 0 provide a very strong rack of, very light weight and having all its outer corners rounded to prevent injury-to the hands of the operators and to facilitate the sliding o theracks over one another.

Other objects ofthe invention will become apparent as the-detailed description thereof proceeds.

In the drawings:

Figure 1 is a plan view of the crepe steaming-rack with a plurality of bobbins mounted therein; 7 I

Figure 2 is a front elevation of the'steaming rack shown in Figure 1, parts of the rack being broken away and sectioned to show details of construction;

:Figure 3 is a perspective view of the steaming rack with the bobbins removed therefrom; p

Figure 4 is an end elevation of the steaming rack with parts thereof broken away to show details of construction;

Figure 5 is an exploded perspectiveof one end and two sides of the rack;

Figure 6 is'a perspective of an intermediate bobbin supporting bar forming part of this invention; I

Figure '4' is a plan of the modified form of this invention;

Figure 8 is a side elevation of the device shown in Figure! Figure 9 is a perspective view of the modi fied form of the invention;

Figure 10 is anexploded perspective view of one end of'modified creperack, illustrating the method'of constructing the ends thereof;

Figure 11 is an end elevation'o f'the modifiedcrepe rack with parts removed to show details of construction Figure 12 is a vertical section, to an enlarged scale, on the line 1212 of Figure 7;

Figure 18 is an enlarged section taken on the line 1313 of Figure 7; and

Figure 14 is a vertical section taken on the line let-1 1 of Figure 13.

As shown in the drawings, the crepe steaming rack comprises a pair of side members 1 and 2, each of which is formed of a single sheet of non-corrosive metal bent to form a hollow rectangular prism having the upper fiat edge 3 provided with a plurality of notches a adapted to receive the pins 5 of bobbins 6. The lower edge of each of the side members is formed by over-lapping flanges 7 and 8; and the whole member assembly, thus formed, is a hollow rectangular bar which is very light and strong.

The inside face 9 of each bar has its outer ends slitted as closely as possible to the under side of the top edge 3, and to the top side of the flange 8, in order to provide lateral flangeslO and 11 projected at right angles to the said face 9 to form a seat and securing means for the pair of rack ends 12 and 13.

Each of the rack ends 12 and 13 is formed as a shallow box having flanges 1e and 15 turned up at right angles to the inner face 16 and also having the end flanges 18 and 19 similarly turned up to complete the box-like formation. Each of the ends is provided centrally of the lower part thereof with a notch adapted to receive av heat insulated handle (not shown herein) Each of the boxdike ends has a block of wood 20 fittlng snugly against the face 16 and between the flanges 1 1, 15, 18 and 19, substantially flush with the edges of said flanges, and detachably secured by friction or any suitable means in the metallic end box.

As will be evident from Figs. 3, 4 and 5 the end flanges 18 and 19 are adapted to seat against the inside of the outer plate 21 of the side members 1 and 2. It will also be ap parent from the drawings that the flanges 14 and 15 fit snugly between the under side of top edge 3 and the upper side of the flange 8. This construction is such that the various flanges are in direct metallic contact with each other. and have all sides of the joints thereof exposed so that they may be reached on opposite sides by the electrodes of a spot welder. It is understood, of course, that during this welding operation the wooden block or handle 20 may be removed, and may be inserted after the outer framework of the crepe rack is assembled.

According to the size of the crepe rack desired one or more intermediate bobbin supporting bars may be arranged between the ends 12 and 13 and parallel to the sides 1 and 2. These intermediate bars need not have the strength nor be of such large dimensions as the outerbars which form the sides and ends of the rack. Accordingly, each of the intermediate bars 21 and 22 is bent to form a rectangular channel member having a flat top face 23 and side flanges 24: and 25 extending at right angles to the face 23.

Each end of each intermediate bar is slitted along the sides thereof as closely as possible to the top face 23, and the ends of the side flanges 2% and 25 are turned out laterally and at right angles to form short flanges 26, 27 28 and 29 which are adapted to abut with tight sliding lit against the inner faces of the end members 12 and 13. The topface 23 extends beyond the lateral flanges 26, 27, 28 and. 29 to form projecting plates 30 and 31 which rest upon the top flanges 141 of each of the ends 12 and 13.

The construction just described of the intermediate bars evidently provides flanges which not only position the intermediate bars properly on top of the end members 12 and 13, but also provides flanges or tabs in direct metallic contact with the inner face 16 and the top flange 1 1 of each end member, so as to form joints exposed all around for contact ith the electrodes of the spot welder.

The intermediate bars are also provided with notches 32 adapted to receive pins 5 of the bobbin 6. In order to support these intermediate bars properly between their ends, the rods 33 and 34 are passed through the parallel sides of said bars and are suitably secured by friction fit or otherwise, between the sides 31 and 2 of the ra k framework.

Itwill be apparent from the disclosure so far that I have provided a crepe steaming rack which can be readily stamped out on sheet metal and which is not only very strong, but is also very light and capable of being assembled very rigidly, economically and rapidly.

The sheet metal parts of the rack are preferably formed ofstainless steel or some other non-corrosive metal which is not likely to discolor or otherwise injure the silk. The joints are so formed that all the parts of the rack can be integrally connected by welding so as to form a rack capable of standing the abuse to which devices of this kind are usually subjected.

In the modified form of the invention, each of the sides of the rack is formed in two parts, in order not only to stiffen said sides but also to eliminate all sharp ends or corners which are likely to catch on the hands or clothing of the operators, or to retard the sliding of one rack on top of another. In this form, too, the cross lugs 33 and 34 are eliminated, and the intermediate members are correspondingly stiffened to strengthen the rack as a whole and otherwise a more easily manufactured member.

As shown in Figures 7, 8 and 12 of the drawings each side member 35 is formed in two parts 36 and 37. The part 36 is formed asa channelmember, having. the ends thereof inset and return bent to form elements 38 and 39 which interlock with corresponding elements 40 and 41 formed on the upper member 37 of the side 35. The elements, 38, 39, 40 and 41 are shaped so that the sides of the upper channel member lie flush with the sides frictionally together and prevent relative movement of the parts 36 and 37.

It will be apparent from Figure 12 of the drawing that when the members 36 and 37 are properly assembled to form a side 35, all corners are rounded and no sharp edges are presented to catch on the clothing or person of an operator or to prevent sliding move-- ment of the sides of one crepe rack on top of another.

The ends of the crepe rack are formed as boxes 42 similar to the boxlike ends of the first described form, but the ends of the side 35 are connected thereto in a diflerent manner. As shown in Figure 10, the outer sides of the members 36 and 37 have the interlocking elements 38, 39, 40 and 41 cut away to a a depth greater than the depth of the end 43 of the box 42 in order to allow the said outer sides to cover and be bent around the end 43. To eflect this overlap, a slot 44 is cut in the top of the outer side of member 37 and a similar slot 45 is out at the bottom of the outer side of member 36. These slots form a flap 46 (see Figures 7 and 10) which is bent around the end 43 of the box 42 when the parts are assembled as shown in Figure 10. The inner sides of the members 36 and 37 are slit near their top to form a laterally extending flange 47 (see Figure 12) which may be spot welded to the rear face of the box 42. This slot construction also forms flaps 48 and 49 on the members 36 and 37 which are also bent around the flanges 50 and 51, respectively, of the box 42, in order to secure the sides 35 firmly to each end of the box.

As will be apparent from the drawings, the construction just described provides a joint between the sides and ends of the crepe rack which presents no sharp edges and which in addition to the spot welding of the several parts greatly increases the strength of the rack as a whole.

The intermediate members 52 are formed of two channel members, one of which is slidably disposed within the other. As shown in Figure 14, the channel member 53 is the outer channel member and has its free end upturned to form flaps 54 and 55 in which the endsof the inner channel member 56 are slidably mounted. The channel member 56 is of less depth than the channel member 53 and after beingassembled in the member 53- maybe securely locked therein by pressure applied to the flaps54 and 55.

In order to receive the trunnions 50f the bobbins" 6, the upper channel member 53 is provided with notches 57 which, extend clear down to'the top of the innerchannel member 56. It will thus be seenthat the inner channel' member presents unbroken surfaces throughout its length and greatly strengthens the channel member 53- which has been weakened by the formation of the notches 57 therein.

In this modified form of the inventiomthe securing flap extends through slots 58 and 59 formed in the bottom of the box 42. The upper face of the member 52 extends under the flange 60 and is spot welded thereto. The flaps 61 and 62 formed on the member turned over and spot welded to the inside face of the-box 42. v

The details of the construction just described are clearly shown in Figure 11, in

which the flaps 61 and 62 are shown turned over on the left hand end of the figure, and the flap ends are shown in section prior to being turned over at theright hand end of the figure.

The heat insulating plate 63 is fitted into the box 42 after all the parts are assembled therein and is bolted to the rearof the box 42 by means of bolts 64 located wherever found necessary or. desirable.

That I claim is:

1. A sheet metal crepe steaming rackcomprising a pair'of hollow side bars, and apair of box-like end members welded to the ends of said side bars, intermediate inverted channel bars supported by and welded to said end barsparallel to said side bars, said bars being provided with recesses adapted to receive and support the trunnion pins of bobbins or.

the like. I V V 2. A sheet metal crepe steaming rack comprising a pairof hollows ide bars rectangularin cross section and having a pair of flangesprojecting perpendicularly from each end thereof, a pair of end members seated on said flanges and betweenthe ends of said side bars and welded to said flanges and side bars, and a heat insulating handle connected to each of said end members.

'3. A sheet metal crepe steaming rack comprising apair of hollow side bars, each of which is formed of asingle plece of sheet metal and is rectangular in cross section, the longitudinal sides of said piece being overlapped to formone edge'of said bar and the piece beingnotched at intervals to form trunnion receiving notches on the other edge of said bar, box-like end members welded to the ends of said side bars, and a heat insulated handle mounted in each of said end members, said bars being notched to receive and support the trunnion pins of bobbins or the like.

l. A sheet metal crepe steaming rack comprising a pair of hollow side bars, each formed of a single piece of sheet metal rectangular in cross section, box-like end members welded to the ends of said side bars, and intermediate channel bars welded to said end members parallel to said side bars, all of said bars having notches formed in the upper edges thereof to receive and support in the trunnions of bobbins or the like.

' 5. A sheet metal crepe steaming rack comprising a pair of hollow side bars, each formed oi a single piece of sheet metal and rectangular in cross section, and each having at pair of flanges projecting laterally therefrom near the ends thereof, a pair of boxlike end members having upturned ends and sides welded to the outer walls of each of said side bars and to said flanges, and heat 'nsulated handles connected to said end members, said bars being notched to receive and support the trunnions of bobbins or the like.

6. A sheet metal crepe steaming rack comprising a pair of hollow side bars, each "ormed of a single piece of sheet metal and rectangular in cross section, and each having a pair of flanges projecting laterally therefrom near the ends thereof, a pair of box-like end members having upturnedends and sides so welded to the outer walls of each of said side bars and to said flanges, intermediate channel bars welded to said end members parallel to said side bars, and heat insulated handles connected to said end members, all of said :1; bars being notched to receive and support the trunnions of bobbins or the like.

7. A sheet metal crepe steaming rack comprising a pair of hollow side bars, having flanges projecting laterally from one side of each near the ends thereof, a pair of box-like ends welded to the walls and flanges of said bars, and heat insulated handles connected to said ends.

8. A sheet metal crepe steaming rack coma; prising a pair of hollow rectangular side bars having flanges projecting from the inner wall of each near the ends thereof, a pair of end members welded to the walls and flanges of said bars, channel bars having flanges prot't jecting laterally from the side walls thereof and having their intermediate walls extended to rest on the upper wall of each end member, said flanges and extensions being welded to said member and heat insulated handles 51:; secured to said end members, said bars being notched to receive and support the trunnions of bobbins or the like.

In testimony whereof I afiix my signature.

LANSING T. CARPENTER 

